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填料对乙烯-乙酸乙烯酯橡胶/丁腈橡胶复合材料阻燃性能的影响

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  • Key Words:乙烯-乙酸乙烯酯橡胶;;丁腈橡胶;;填料;;极限氧指数;;阻燃性能;;拉伸性能

  • Abstract:以乙烯-乙酸乙烯酯橡胶/丁腈橡胶共混胶为基体材料,氢氧化镁和硼酸锌为阻燃剂,通过极限氧指数法和锥形量热仪对比研究了碳酸钙、滑石粉和白炭黑对复合材料阻燃性能的影响。结果表明,在阻燃剂高填充用量下,3种填料的加入都会降低复合材料的极限氧指数,但对体系燃烧过程的影响稍有差别,其中滑石粉体系的点燃时间最短,但可降低体系的热释放速率峰值和总释放热,对复合材料的拉伸强度有不利影响;碳酸钙对体系的阻燃性能和拉伸强度没有明显的影响;白炭黑对体系点燃时间和总释放热影响不大,但能降低热释放速率峰值,提高复合材料的拉伸强度。

  • Volume:v.36

  • Issue:06

  • Translation or Not:no

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